A child educated only at school is an uneducated child.

The secret of life is not enjoyment but education through experience.

The books that the world calls immoral are books that show the world its own shame.

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

Investigate, educate and organize.

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

I am indebted to my father for living, but to my teacher for living well.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

What is now proved was once only imagined.

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

A thought is an idea in transit.

When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.

Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

I learned very early the difference between knowing the name of something and knowing something.

You can never learn less, you can only learn more.

No power and no treasure can outweigh the extension of our knowledge.

Men are born ignorant, not stupid. They are made stupid by education.